![Screenshot of jetp.ras.ru: Propagation of Sound in Strongly Viscous Liquids (1966) [pdf]](https://hn.urlbox.com/shots/renders/2026/10/18/ab54765c-93be-40d0-b752-9edf6ebf6138.jpg)
Propagation of Sound in Strongly Viscous Liquids (1966) [pdf](jetp.ras.ru)
7 points by peter_d_sherman | 1 comments
A 1966 physics paper PDF from the journal JETP on how sound propagates through strongly viscous liquids.
#acoustics on Hacker News
5 stories tagged acoustics, newest first.
Sound (2022)(ciechanow.ski)
260 points by dverlaeckt80 | 32 comments
Bartosz Ciechanowski's interactive article explaining what sound is, how it is created, and how it propagates, with playable audio demos.
Škoda DuoBell: A bicycle bell that penetrates noise-cancelling headphones(skoda-storyboard.com)
541 points by ra | 545 comments
Škoda Storyboard article introducing DuoBell, a bicycle bell designed so its sound cuts through active noise-cancelling headphones to alert pedestrians.
The scientific “unit” we call the decibel(lcamtuf.substack.com)
558 points by Ariarule | 438 comments
A blog post on lcamtuf's Substack arguing that the decibel is a confusing, inconsistent scientific unit.
Ultrasonic investigations in shopping centres(windytan.com)
332 points by GolDDranks | 131 comments
Blog post by Oona Räisänen investigating near-ultrasonic beacon tones emitted by PA systems in shopping centres, with spectrum analysis.